It's the other way around for me. DES or EPU is not that important for me. It is because I run my CPU at full speed most of the time e.g. Gaming & etc.
You don't care about solid capacitor or not? I assume you are not an overclocker? These solid capacitors are very important for your system to run stably. What you meant was you don't care whether they are Japanese made or not is it? It's not that the capacitors burst or don't burst, who doesn't want a motherboard that has the quality to run for as long as possible?
If you are someone that likes to fiddle with BIOS settings or overclock your system, you don't need or want to turn on EPU/DES I suppose.
EPU or DES greatly relies on your FSB or VCore to save energy. So you should just turn it off if you happen to own a motherboard has this feature.

well, the news is not surprising...
anyway i always prefer saus product

Do you overclock? =_=
this is why gaygaybyte expose this issue?
Do you overclock? =_=

Solid caps are not electrolytic and they are not supposed to explode. They use conductive polymer or semiconductor type. On the subject of fake caps, its easy to tell.. don't look at the color but the brand. Example "Rulycon" (the real one is "Rubycon"). One of the brands commonly faked is Nichicon, which is hard to tell unless you are familiar with Nichicon's markings and colors.  I saw somewhere that even Apple uses these at one time, here  
Well given the same load (formula V^2/R), lower Vcore definitely reduces the wattage but stability when may be affected especially those overclocked.